Trait polars::prelude::ChunkRollApply

pub trait ChunkRollApply: AsRefDataType {
    // Provided method
    fn rolling_map(
        &self,
        _f: &dyn Fn(&Series) -> Series,
        _options: RollingOptionsFixedWindow
    ) -> Result<Series, PolarsError>
       where Self: Sized { ... }
}

Available on crate feature rolling_window only.

This differs from ChunkWindowCustom and ChunkWindow by not using a fold aggregator, but reusing a Series wrapper and calling Series aggregators. This likely is a bit slower than ChunkWindow

Provided Methods

fn rolling_map( &self, _f: &dyn Fn(&Series) -> Series, _options: RollingOptionsFixedWindow ) -> Result<Series, PolarsError>

where Self: Sized,

Implementors

impl<T> ChunkRollApply for ChunkedArray<T>

where T: PolarsNumericType, ChunkedArray<T>: IntoSeries,